:root {
    --primary-color: #000000;
    --text-color: #1f2937;
    --bg-color: #f3f4f6;
    --form-bg: #ffffff;
    --border-color: #d1d5db;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px 0;
    margin: 0;
}

.form-container {
    max-width: 700px;
    margin: 40px auto;
    background: var(--form-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

h1 {
    margin-top: 0;
    color: #111827;
    border-bottom: 2px solid var(--bg-color);
    padding-bottom: 10px;
}

p.intro {
    color: #4b5563;
    margin-bottom: 25px;
}

fieldset {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 25px;
    background-color: #fbfbfe;
}

legend {
    font-weight: bold;
    font-size: 1.1rem;
    padding: 0 10px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group:last-child {
    margin-bottom: 0;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #374151;
}

.hint {
    display: block;
    font-size: 0.85rem;
    color: #6b7280;
    margin-top: -4px;
    margin-bottom: 8px;
    font-weight: normal;
}

input[type="text"],
input[type="email"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 1rem;
    font-family: inherit;
}

input[type="text"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.checkbox-group, .radio-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 5px;
}

.checkbox-label, .radio-label {
    display: flex;
    align-items: center;
    font-weight: normal;
    cursor: pointer;
    margin-bottom: 0;
}

.checkbox-label input, .radio-label input {
    margin-right: 10px;
    width: 16px;
    height: 16px;
}

.inline-text-input {
    margin-top: 5px;
}

.hp-wrap {
    position: absolute;
    left: -99999px;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

button[type="submit"] {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.2s;
}

button[type="submit"]:hover {
    background-color: #1d4ed8;
}